net.sf.borg.model.db.jdbc
Class LinkJdbcDB

java.lang.Object
  net.sf.borg.model.db.jdbc.JdbcDB
      net.sf.borg.model.db.jdbc.JdbcBeanDB<Link>
          net.sf.borg.model.db.jdbc.LinkJdbcDB

All Implemented Interfaces:

EntityDB<Link>, LinkDB

public class LinkJdbcDB
extends JdbcBeanDB<Link>
implements LinkDB

provides the JDBC layer for reading/writing Links

Field Summary

Fields inherited from class net.sf.borg.model.db.jdbc.JdbcDB

connection_

Constructor Summary

LinkJdbcDB()

Method Summary

void	addObj(Link att) Adds a KeyedEntity to the database
(package private) Link	createFrom(ResultSet r) Fills in an entity from a result set
void	delete(int key) Delete a KeyedEntity from the database
Collection<Integer>	getKeys() Gets the keys.
Collection<Link>	getLinks(int ownerkey, String ownertype) Gets all links for a given Entity.
(package private) PreparedStatement	getPSAll()
(package private) PreparedStatement	getPSOne(int key)
Link	newObj() Return a new instance of the KeyedEntity
int	nextkey() get the next available key value for this entity type
void	updateObj(Link att) Update a KeyedEntity in the database

Methods inherited from class net.sf.borg.model.db.jdbc.JdbcBeanDB

delCache, emptyCache, readAll, readCache, readObj, sync, writeCache

Methods inherited from class net.sf.borg.model.db.jdbc.JdbcDB

beginTransaction, buildDbDir, checkTimestamp, close, commitTransaction, connect, execSQL, getConnection, getOption, getOptions, getUrl, rollbackTransaction, setOption, toInt, toInt, toStr, toVect

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface net.sf.borg.model.db.EntityDB

readAll, readObj, sync

Constructor Detail

LinkJdbcDB

public LinkJdbcDB()

Method Detail

addObj

public void addObj(Link att)
            throws Exception

Description copied from interface: EntityDB

Adds a KeyedEntity to the database

Specified by:

addObj in interface EntityDB<Link>

Parameters:

att - the KeyedEntity

Throws:

Exception

delete

public void delete(int key)
            throws Exception

Description copied from interface: EntityDB

Delete a KeyedEntity from the database

Specified by:

delete in interface EntityDB<Link>

Parameters:

key - the key of the entity

Throws:

Exception

getKeys

public Collection<Integer> getKeys()
                            throws Exception

Gets the keys.

Returns:

the keys

Throws:

Exception - the exception

nextkey

public int nextkey()
            throws Exception

Description copied from interface: EntityDB

get the next available key value for this entity type

Specified by:

nextkey in interface EntityDB<Link>

Returns:

the next available key

Throws:

Exception

newObj

public Link newObj()

Description copied from interface: EntityDB

Return a new instance of the KeyedEntity

Specified by:

newObj in interface EntityDB<Link>

Returns:

the new KeyedEntity

getPSOne

PreparedStatement getPSOne(int key)
                     throws SQLException

Specified by:

getPSOne in class JdbcBeanDB<Link>

Returns:

a PreparedStatement that reads one entity by key

Throws:

SQLException

getPSAll

PreparedStatement getPSAll()
                     throws SQLException

Specified by:

getPSAll in class JdbcBeanDB<Link>

Returns:

a PreparedStatement that reads all entities from a table

Throws:

SQLException

createFrom

Link createFrom(ResultSet r)
          throws SQLException

Description copied from class: JdbcBeanDB

Fills in an entity from a result set

Specified by:

createFrom in class JdbcBeanDB<Link>

Parameters:

r - the result set

Returns:

the entity

Throws:

SQLException

updateObj

public void updateObj(Link att)
               throws Exception

Description copied from interface: EntityDB

Update a KeyedEntity in the database

Specified by:

updateObj in interface EntityDB<Link>

Parameters:

att - the KeyedEntity

Throws:

Exception

getLinks

public Collection<Link> getLinks(int ownerkey,
                                 String ownertype)
                          throws SQLException

Description copied from interface: LinkDB

Gets all links for a given Entity.

Specified by:

getLinks in interface LinkDB

Parameters:

ownerkey - the key of the Entity

ownertype - the type of Entity

Returns:

the collection of links

Throws:

SQLException